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  • Other Sources  (2)
  • PLASMA PHYSICS  (2)
  • China
  • 1990-1994  (2)
  • 1
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    Observation of frequency up-conversion in the propagation of a high-power microwave pulse in a self-generated plasma (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A chamber experiment is conducted to study the propagation of a high-power microwave pulse. The results show that the pulse is experiencing frequency up-shift while ionizing the background air if the initial carrier frequency of the pulse is higher than the electron plasma frequency at the incident boundary. Such a frequency autoconversion process may lead to reflectionless propagation of a high-power microwave pulse through the atmosphere.
    Keywords: PLASMA PHYSICS
    Type: Physics Letters A (ISSN 0375-9601); 150; 2; p. 92-96.
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    A theoretical model for intense microwave pulse propagation in an air breakdown environment (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: A theoretical model based on two coupled partial differential equations is established to describe the propagation of an intense microwave pulse in air breakdown environment. One is derived from the Poynting theorem, and the other one is the rate equation of electron density. A semiempirical formula of the ionization frequency is adopted for this model. A transformation of these two equations to local time frame of reference is introduced so that they can be solved numerically with considerably reduced computation time.
    Keywords: PLASMA PHYSICS
    Type: Physics of Fluids B (ISSN 0899-8221); 3; 2906-291
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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